Shoee geoin



2 Sheets Sheet 1.

E. CASE.

SHORE Geom.

(No Model.)

2 Sheets Sheet 2.

E. CASE.

SHORE GROIN.

(No Model.)

Patented Feb. 1, 1898.

INVENTOR {ow/mn CASE A TTY4 ww@ jef@ MM@ TH: Nonms Pneus cov mom-Luino..wAsHmmow. D. c.

UNiTnD Sintes A'rnN'r muon,

EDWARD CASE, OF DYMCHURCH, ENGLAND.

SHORE-GROIN.

SPECIFICATION forming part of Letters Patent No. 598,076, dated February1, 1898.

Application tiled Joly 19,1897. Serial No. 645,115. (No model.) Patentedin England Inno 25, 1896, No. 14;,115L

To @ZZ whom it may concern.-

Be it known that l, EDWARD CASE, a subject of the Queen of GreatBritain, residing at The I-Iall, Dymchurch, county of Kent, England,have invented certain new and useful Improvements in the Construction orArrangement of Shore-Groins, (patented in Great Britain, No. 14,115,dated June 25, 1896,) of which the following is a specitication.

This invention has for its object constructing shore-groins from acombination of upright or angleWise-arranged timbers in couples withlower ends set in concrete beds, preferably from about mean sea-level tolow-Water' mark and landWard from the same point to the shore orsea-Wall, the spaces between the upright or angle timbers havinghorizontal planks let in or slipped down to form intermediate screens.

To carry my invention into practice, reference is had to the annexeddrawings, in which- Figure l is an end view of the uprightsboltedtogether and showing the position they occupy when embedded in theconcrete foundation. Fig. 2 is a side view of same. Fig. 3 is anelevation of a short groin for use When the beach has a sharp slope, thedotted lines illustrating how same can be heightened. Fig. a is anelevation of a long shore-groin for use With a comparatively shallowbeach.

I prepare a series of balks or planks A A with bolt-holes B B, Figs. land 2,Where necessary. Two of such planks A, I bolt together at top andat bottom with distance-pieces C D between them, one, C, serving as afoot with ends projecting and the other for removal afterwardvforreception of ends '"of topmost horizontal planks E, Fig. 3, which aredropped into position on edge to lill up the gap between tivo sets ofuprights. For placing these uprights in position I dig a hole Fin thesand or earth G at intervals, starting, preferably, at mean sea-levelvor low-Water level, or thereabout, and. set oneor more of my coupleduprights A in position. At the same time I fill or nearly ll the holewith cement concrete H, which surrounds and embeds the lower ends of theuprights. I then cover the concrete with sand or earth to the ordinarylevel of the beach G. I repeat this with a second couple of uprights andconcrete at the requisite distance nearer the sea or river Wall and setor slip my horizontal or screen planks E in position and so Work up tothewall J in stages.

I purpose cutting a channel between each set of uprights, so that thebottom horizontal planks ot the screens are embedded in the sand.

The rapidity with which a groin on my principle can be prepared and setin position is marvelous as compared to the time occupied in digging,shoring, strutting, and then tying in position by angle-set struts orprops driven into the beach at a-distance from the groin itself.

The ground-line in Fig. 4 sh oWs the approximate level assumed byshingle, sand, or the like next the shore, and according to the usualpractice in making a groin the top is generally carried up to a uniforminclination, as indicated by the dotted lines a a, Fig. 4, thisindicating a useless Waste of timber, which my system is intended toprevent.

It Will be gathered from the foregoing that all my timber-Work can beprepared on shore, so that it has only to be carted to the spot as eachhole is dug and the upright-s be set in place, gradually movingshoreward or sea- Ward, according to the desire of the contractor. It isalso to be noted that practically no plant 0r preparation other than theabove is p necessary, so that at the shortest notice advantage can betaken of an extraordinary low tide, caused' by favorable Wind or other-Wise, to extend the groin seaward.

Little or no skilled labor will be necessary, as the central positionfor the digging of the holes can be readily staked out for guiding thedigging laborers, who also, after inserting the upri ghts, simply holdthem vertically While the cement concrete 'is shot in, preferably from acart,r to find its own packing, the action of the Water of the inilowingtide effecting the consolidation.

Should the sand or shingle be Washed up to about the top of the groin,said groin can be easily raised in height by securing fresh uprights tothe existing horizontal planks IOO and then to insert fresh horizontalplanks, as before. This Will be understood by the dotted lines in Fig'.3.

What I claim, and desire to secure by Let-y ters Potent, is-

A shore-groin Consisting of nprghts formed from tWo or more planks orbalks A held apart by dstanoing-pieoes C and braced together by boltspassed through the planks or 1o balks A and dsto11ong-peoes C; togetherwith planks E arranged between the balks A and between upright andupright as and for the purpose set forth.

In testimony whereof lhave hereunto set my hand n presenoeof twosubscribing wit- 15 DQSSGS.

EDWARD OASE. Vtnesses:

HENRY STRINGER, HAROLD W. STRINGER.

